As I’ve mentioned previously, there’s a bug in WordPress that periodically closes all comments on the site. Worse yet, I can’t see that comments have been closed when I’m logged in.
I just fixed the problem again, but this has been happening a lot lately. I’m not sure if it’s due to the lack of posting on my part, because the site is currently getting hammered with spam, or if it’s just WordPress being random.
But if you see it happen, drop me an e-mail and I’ll get it fixed ASAP.